9.3

CVE-2017-10784: ruby-lang ruby Improper Authentication

Modified
AliasesALPINE-CVE-2017-10784UBUNTU-CVE-2017-10784GHSA-369m-2gv6-mw28
Published 19-09-2017Last modified 05-08-2024

Vulnerability summary

CVE-2017-10784 is a high (CVSS 9.3) Improper Authentication vulnerability in ruby-lang ruby. EPSS estimates a 16.41% chance of exploitation in the next 30 days, higher than 96.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
9.3/10
010
High · v2.0 (NVD)
EPSS score
16.41%
0%100%
Medium · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 16 · Related 4
DLA-1113-1DLA-1114-1DLA-1421-1DSA-4031-1MGASA-2017-0371RHSA-2017:3485

Timeline

  1. 19-09-2017
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

16.41%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

No change 0.00 pp

From 16.41% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu3 products
  • ruby1.9.1< 1.9.3.484-2ubuntu1.5
  • ruby2.0< 2.0.0.484-1ubuntu2.10
  • ruby2.3< 2.3.1-2~16.04.5
Alpine2 products
  • ruby< 2.4.2-r0 | < 2.2.8-r0 | < 2.3.5-r0
  • ruby2.2< 2.2.8-r0
Ruby-lang1 product
  • rubyEOL≤ 2.2.7 | 2.3.0 | 2.3.0:preview1 | 2.3.0:preview2 | 2.3.1 | 2.3.2 | 2.3.3 | 2.3.4 | 2.4.0 | 2.4.0:preview1 | 2.4.0:preview2 | 2.4.0:preview3 | 2.4.0:rc1 | 2.4.1
RubyGems1 product
  • webrick< 1.4.0

4 vendors · 7 products

References

35 links
Show all 35 references